/**
 <Cascader
      ref="cascaderSelect"
      v-model="test"
      :show-all-levels="false"
      :options="[
        { name: '测试数据1', id: 1 },
        { name: '测试数据2', id: 2, item: [
          { name: '测试数据2-1', id: 21 },
          { name: '测试数据2-2', id: 22 },
          { name: '测试数据2-3', id: 23 },
          { name: '测试数据2-4', id: 24 },
          { name: '测试数据2-5', id: 25 },
          { name: '测试数据2-6', id: 26 },
          { name: '测试数据2-7', id: 27 },
          { name: '测试数据2-8', id: 28 },
          { name: '测试数据2-9', id: 29 },
        ] },
        { name: '测试数据3', id: 3, item: [{ name: '测试数据3-1', id: 31 }] },
      ]"
      :multiple="true"
      :filterable="true"
      :props="{
        emitPath: false,
        value: 'id',
        label: 'name',
        children:'item',
        multiple: true,
        checkStrictly: false
      }"
      collapse-tags
      size="small"
      clearable>
      <template slot-scope="{ data }">
        {{ data.name }}
      </template>
    </Cascader>
 */
